Mold for injection molding and diecasting machines

Abstract

A mold for injection molding or diecasting machines, which comprises two closable mold parts defining a die cavity therebetween in a closed position of the mold parts, and inserts slidably movable in rectilinear guides in respective ones of the mold parts. The guides leading into the die cavity have a taper narrowing in a closing direction of the mold parts, and the inserts have guide surfaces Inning at a slant to the taper of the guides.

What is claimed is:  
     
       1. A mold for injection molding or diecasting machines, which comprises 
       (a) two closable mold parts defining a die cavity therebetween in a closed position of the mold parts, and  
       (b) inserts slidably movable in rectilinear guides in respective ones of the mold parts,  
       (1) the guides leading into the die cavity and having a taper narrowing in a closing direction of the mold parts, and  
       (2) the inserts having guide surfaces running at a slant to the taper of the guides.  
     
     
       2. The mold of  claim 1 , wherein the taper of the guides has a maximum angle of 1°. 
     
     
       3. The mold of  claim 1 , further comprising a mechanical stop determining, in the closed position, a residual gap between the tapered guides and the guide surfaces of the inserts. 
     
     
       4. The mold of  claim 3 , wherein the residual gap has a width of 0.005 mm to 0.02 mm. 
     
     
       5. The mold of  claim 1 , wherein one of the rectilinear guides is a primary guide associated with a secondary guide separated from the die cavity, the taper of the primary guide having a greater angle than that of the secondary guide.